Product Overview
The RK73B series is a general-purpose thick film chip resistor offering 2% and 5% tolerances. These resistors are designed for a wide range of applications and feature lead-free terminations that meet EU RoHS requirements. They are AEC-Q200 tested for reliability.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Product Line: RK73B
- Certifications: EU RoHS compliant (for lead-free terminations)
- Testing: AEC-Q200 tested
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x T x C x D | Power Rating | Rated Ambient Temp. (C) | Rated Terminal Part Temp. (C) | Resistance Range | T.C.R. (x10-6/K) | Max. Working Voltage | Max. Overload Voltage |
| 1F (01005) | 0.4 x 0.2 x 0.10 x 0.11 x 0.05 | 0.03W | 70 | 125 | 10 - 91k | 250 | 20V | 400V |
| 1H (0201) | 0.6 x 0.3 x 0.15 x 0.23 x 0.08 | 0.05W | 70 | 125 | 1 - 10M | 200 | 25V | 200V |
| 1E (0402) | 1.0 x 0.4 x 0.2 x 0.35 x 0.12 | 0.1W | 70 | 125 | 1 - 10M | 200 | 50V | 200V |
| 1J (0603) | 1.6 x 0.8 x 0.3 x 0.45 x 0.2 | 0.1W | 70 | 125 | 1 - 10M | 200 | 75V | 400V |
| 2A (0805) | 2.0 x 1.25 x 0.5 x 0.5 x 0.3 | 0.125W | 70 | 125 | 1 - 10M | 200 | 75V | 400V |
| 2B (1206) | 3.2 x 1.6 x 0.5 x 0.65 x 0.4 | 0.25W | 70 | 125 | 1 - 10M | 200 | 100V | 400V |
| 2E (1210) | 3.1 x 2.0 x 0.5 x 0.79 x 0.45 | 0.25W | 70 | 125 | 1 - 10M | 200 | 150V | 400V |
| 2H/W2H (2010) | 2.6 x 1.6 x 0.5 x 0.6 x 0.4 | 0.75W | 70 | 155 | 1.1k - 1M | 200 | 200V | 400V |
| 3A/W3A (2512) | 2.5 x 3.2 x 0.5 x 0.65 x 0.4 | 1.0W | 70 | 155 | 1 - 1k | 200 | 200V | 400V |
| W3A2 (2512) | 3.1 x 2.5 x 0.5 x 0.6 x 0.4 | 2.0W | 70 | 155 | 1 - 5.6M | 200 | 200V | 400V |
Performance Characteristics
| Parameter | Requirement | Limit | Typical | Test Method |
| Resistance | Within specified tolerance | |||
| T.C.R. | 25C +25C/-55C and +25C/+125C | Within specified T.C.R. | ||
| Overload (Short time) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) | 2% | 1%: 1F 0.5%: Another | |
| Resistance to Soldering Heat | 260C 5C, 10 seconds 1 second | 1%: 1F~W3A2 (10R1M) 3%: 1F~W3A2 (R<10, R>1M) | 0.5%: 1F~W3A2 (10R1M); 1%: 1F~W3A2 (R<10, R>1M) | |
| Rapid Change of Temperature | -55C (30 minutes), +125C (30 minutes), 100 cycles | 1%: 1F 0.5%: Another | 0.5%: 1F 0.3%: Another | |
| Moisture Resistance | 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B 3%: Another | 0.75%: 1J, 2A, 2B 1.5%: 1F; 1%: Another | |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B 3%: Another | 0.75%: 1J, 2A, 2B 1%: Another | |
| High Temperature Exposure | +125C, 1000 hours: 1F; +155C, 1000 hours: 1E, 1H, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2 | 1% | 0.5%: 1F 0.3%: Another |
2410121616_KOA-RK73B2ETTD300J_C2482883.pdf
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